SF Giants closer Brian Wilson debuts with 9-pitch inning

Brian Wilson bobbleheads are sold before the San Francisco Giants Cactus League spring training opener against the Arizona Diamondbacks in Scottsdale, Ariz. on Saturday, March 3, 2012.

Brian Wilson bobbleheads are sold before the San Francisco Giants Cactus League spring training opener against the Arizona Diamondbacks in Scottsdale, Ariz. on Saturday, March 3, 2012.

Photo: The Chronicle

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San Francisco Giants pitcher Brian Wilson throws to the Seattle Mariners during the fourth inning of a spring training baseball game.

San Francisco Giants pitcher Brian Wilson throws to the Seattle Mariners during the fourth inning of a spring training baseball game.

Photo: Marcio Jose Sanchez / Associated Press

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San Francisco Giants relief pitcher Brian Wilson throws to the Seattle Mariners during the fourth inning of a spring training baseball game Sunday, March 11, 2012 in Scottsdale, Ariz.

San Francisco Giants relief pitcher Brian Wilson throws to the Seattle Mariners during the fourth inning of a spring training baseball game Sunday, March 11, 2012 in Scottsdale, Ariz.

Photo: Marcio Jose Sanchez / Associated Press

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Photo: Marcio Jose Sanchez / Associated Press

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San Francisco Giants' Brian Wilson holds a baseball for team photographer Andy Kuno during the team's photo day before a spring training baseball workout.

San Francisco Giants' Brian Wilson holds a baseball for team photographer Andy Kuno during the team's photo day before a spring training baseball workout.

Photo: Morry Gash / Associated Press

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Wilson poses during spring training photo day on March 1, 2012 in Scottsdale, Arizona.

Wilson poses during spring training photo day on March 1, 2012 in Scottsdale, Arizona.

Photo: Jamie Squire / Getty Images

SF Giants closer Brian Wilson debuts with 9-pitch inning

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Giants closer Brian Wilson had the precise kind of 2012 debut that manager Bruce Bochy was hoping for, and it ended with a flourish.

Wilson, who was brought along slowly as he built strength around his right elbow, retired the Seattle Mariners on nine pitches in the fourth inning at Scottsdale Stadium. It looked as though he threw nothing but fastballs, and maybe a cutter or two.

Justin Smoak grounded out on the first pitch. Carlos Peguero poked an opposite-field single to left. Then, with the count 1-2, Wilson and Buster Posey ended the inning with a strike-’em-out, throw-’em-out double play. Vinnie Catricala swung through the pitch and Posey easily retired Peguero for his first caught stealing in three attempts since he began playing Friday.

Posey is hitless at the plate with two groundballs against Mariners ace Felix Hernandez. He ran pretty well on the first grounder but was slow out of the box on the second.

The Giants lead 2-1, on a Melky Cabrera single for his eighth RBI and a Pablo Sandoval sacrifice fly. Gregor Blanco and Emmanuel Burriss started the third inning with singles, Burriss’ a perfect hit-and-run.

Eric Surkamp went three innings for the Giants and allowed one run with no walks and three strikeouts.